1 Light year = _____ m.

Which of the following is correct? 

A rock has a mass of 5 kg on the earth. What is its mass of the same rock on moon? 

A shopkeeper sold 67 kg 626 g of wheat on Saturday and 125 kg 200 g of wheat on Sunday. Find the total mass of wheat sold on both the days.

A rickshaw-puller is carrying two persons weighing 52 kg 250 g and 37 kg 700 g. What is the total mass of the two persons carried by the rickshaw- puller? 

1 nm = ______ Å.

A grocer puts apples and plums together on the weighing machine. The total weight shown on the machine is 8 kg. If the weight of the plums is 2 kg 700 g, then what is the weight of the apples 

5000 milligram (mg) = ___ gram (g).

1kg ____ gm. 

1 mg = ____ g